AERCO SWDW68 U-Tube Double-Wall Heaters w/ECS - Manual (Page 98)

HE-
111 − APPENDIX B
Rev B Mar 2013 B-2
+
INPUT 1
INPUT 2
NO
NC
C
+
THERMOCOUPLE
WHITE
RED
120/240VAC
THERMO
COUPLE
J
(OUTLET)
POWER
SWITCH
POWER IN
120 VAC
1 2 7 8 10 9 11
PROBE INPUT
+
-
POWER
SUPPLY
12VDC
NC NO COM
THERMO-
COUPLE
J
(OUTLET)
SOLENOID
VALVE
+
LINE
NEUTRAL
GROUND
OVER TEMPERATURE SWITCH
LINE
POWER SUPPLY
INPUT 120 VAC
OUTPUT 24VDC +V
+V
-V
-V
NEUTRAL
LINE
RED WHITE
1
2
1A
NEUTRAL
GROUND
+
VOLTAGE REGULATOR
INPUT 24VDC
OUTPUT 12VDC
LM 7812
+ + - INPUT OUTPUT
260 V, 2A RELAY
101
100
101
102
GND
103 104
TB-1
10
4
10
5 TB-1
11
2
11
1
TB-2
102
100
102
TB-2
TB-2
GND
GND
-
104
107
TB-1
TB-1
105
104
104
106
114 114
104
104
TB-1
109
110
10
6
10
7
TB-2
103
100
102
(FEEDBACK)
113 +
113
-
MIXED INLET TEMPERATURE
THERMOCOUPLE
INTERNAL
RECIRCULATION
PUMP
GND
L
N
100
102
GND
TB-2
FLEX CONDUIT
ACTUATOR
ON
TB-1
COMMON
24VDC
1
2
3
RESET BUTTON
DIP SWITCH
5
4
3
1
2
4-20 MA
120 VAC, 60 HZ
J THERMOCOUPLE
MIXED
10
5
10
0
1A HA
1B HB
1C HC
2A
2B
1D
HE
HF
HD
3B
3D
3C
2D
3A
2C
JD
JF
JE
JB
JC
JA
LA
LB
LC
AA
AB
AC
VI
V+
V-
L
N
C
O
S
M
TEMPERATURE CONTROLLER
SEE
TABLE 1
104
TABLE 1
TEMP CONTROLLER
SIGNAL NAME PIN NO.
GROUND HD
RECEIVE
HE
TRANSMIT HF
COMPUTER CONTROL CABLE
SIGNAL NAME
GROUND
TRANSMIT
2
3
5
PIN NO.
2
3
7
PIN NO.
A
B
GROUND
PIN NO.
RS-232 / 9 PIN RS-232 / 25 PIN RS-485
RECEIVE
-
-
-
-
10
2
102
100
100
102
(LOCATED AT INLET)
106
NOTE: This drawing is only applicable for older units built WITH the voltage regulator, which are those units with a serial number BEFORE H-10-324.
Figure B-1a. DW-Series Heat Exchanger Wiring Diagram (S/N H-10-323 and Below)